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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Adsorption / desorption

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Administrative data

Link to relevant study record(s)

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Endpoint:
adsorption / desorption: screening
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance has a low octanol water partition coefficient and the adsorption potential of this substance is related to this parameter
Endpoint:
adsorption / desorption
Remarks:
other: calculation of log Koc for ionized molecule
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
GLP compliance:
no
Type:
Koc
Value:
26
Remarks on result:
other: pH 5.0
Type:
log Koc
Value:
1.41
Remarks on result:
other: pH 5.0
Type:
Koc
Value:
26
Remarks on result:
other: pH 7.0
Type:
log Koc
Value:
1.41
Remarks on result:
other: pH 7.0
Validity criteria fulfilled:
not specified
Conclusions:
The Koc of the substance was calculated following Franco & Trapp (2008) to be 26.0 (logKoc = 1.41) at pH 5 and 7.

Description of key information

Following the low octanol water partition coefficient (log Pow = -0.50) of the substance, no significant adsorption is expected. The Koc was calculated to be 26.0 L/kg  (log Koc = 1.41) following Franco & Trapp (2008).

Key value for chemical safety assessment

Koc at 20 °C:
26

Additional information

Based on the relatively low log Pow no significant adsorption to soil or sediment is expected. For any further assessment, a log Koc of 1.41 (pH 5 and 7) for the ionized molecule was calculated according to Franco & Trapp (2008) using a pKa of 10.4 and a log Pow of -0.50 (uncharged molecule) as input-parameter.